First, the requirement

Solder joints should be good contact between the weldment can be guaranteed to be stable through a certain current.

The occurrence of sweating should be avoided. Weld is not formed or formed part of the heap with solder alloy of tin solder. Weld reasons: dirty surface of the welded parts, welded (Recommended Product: Ningbo welding), the gripping tool shaken, the tip temperature is too low, the flux does not meet the requirements of the solder joints too much or too little.

Solder joints have enough welders (Recommended Product: Ningbo welder) mechanical strength.

Solder joints to be beautiful, smooth solder joints to show the state should not have sharp edges or pull the phenomenon, the causes and tensile welding tip temperature; iron removed in the direction, speed and flux related.

Welded to the qualifications

1. Weldments must have been weldability
2. Welded surface should be kept clean
3 using the appropriate flux
4. Appropriate welding temperature.

5 in the Welding Electrode temperature is confirmed, the decision should be based on the wet state to weld the length of time. Time is too short, insufficient solder a wet, too long, there is the risk of damage to the circuit board, which controls between the 1.5-4s.

The basic method of welding

Wires and components on the tin. First with a knife or fine sandpaper remove wires, the surface of the metal oxide component leads, the roots of some components do not scratch, for the multi-strand, respectively, should scrape, more shares of twisted rope, then on the tin. Tin on the process, so that power to the electric iron electric iron contacts rosin, issued Zizi's voice and the white smoke, indicating the temperature is moderate. Then scrape a good weldment on the rosin on the soft reduction with iron wire, then repeated friction, side turn lead until the lead parts evenly coated with tin.

Soldering iron grip

Anti-grip, is grip, hold a pen method.

Anti-grip: Action stable, long-operator is not easy to feel tired, for high-power soldering iron and heat capacity of the welded pieces.

Positive grip: suitable for curved or straight tip tip operating in the rack (recommended: Shelves) on the operation of welding wire is connected.

Hold a pen method: long hand fatigue easily, suitable for low-power soldering iron and heat capacity of small welded pieces.

Second, the basic method of welding in the welding pieces guaranteed to be fixed, it is often left to take tin wire, right hand soldering iron, can be welded to the welded pieces.

Five-step welding:

1 preparation. Weldment will be fixed in place, the solder, soldering iron and other easy to use ready to put into place, into the welding state.

2 with the tip heated by weldment.

3 into the solder. After heating the welded parts, reaches a certain temperature, immediately into the left hand holding the solder to the tip welded parts and the connection point on the appropriate solder melts.

4 Remove the solder. When a certain amount of solder melts, quickly remove the solder.

5 Remove the soldering iron. When the flow of solder joints after covering the entire spread, quickly remove the soldering iron. Remove the soldering iron in the direction and quality of welding, is generally required to tip away a 45-degree angle direction, smooth solder joints at this time, taking only a small amount of solder tip.

Nickel Welding Rod

1 preparation.
2, while the solder and the tip is welded to the pieces, so that the solder and welded parts are heated simultaneously.
3 At the same time remove the soldering iron and solder.